Insulation application unit



FIG. 1 is a perspective view of the insulation application unit;

FIG. 2 is a front view thereof;

FIG. 3 is a side view of the right side thereof;

FIG. 4 is a side view of the left side thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a bottom view thereof; and

FIG. 7 is a top view thereof. 

The ornamental design for an insulation application unit, as shown and described. 